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plans: tick reduce f/ f⌿, progress log
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Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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giles
2026-05-06 19:39:34 +00:00
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plans/apl-on-sx.md
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@@ -73,7 +73,7 @@ Core mapping:
- [x] 40+ tests in `lib/apl/tests/structural.sx`
### Phase 4 — operators (THE SHOWCASE)
- [ ] Reduce `f/` (last axis), `f⌿` (first axis) — including `∧/`, `∨/`, `+/`, `×/`, `⌈/`, `⌊/`
- [x] Reduce `f/` (last axis), `f⌿` (first axis) — including `∧/`, `∨/`, `+/`, `×/`, `⌈/`, `⌊/`
- [ ] Scan `f\`, `f⍀`
- [ ] Each `f¨` — applies `f` to each scalar/element
- [ ] Outer product `∘.f` — `1 2 3 ∘.× 1 2 3` ↦ multiplication table
@@ -118,6 +118,7 @@ data; format for string templating.
_Newest first._
- 2026-05-06: Phase 4 step 1 — reduce f/ (last axis) + f⌿ (first axis); apl-reduce/apl-reduce-first; 110/110 tests
- 2026-05-06: Phase 3 complete — membership ∊, dyadic ⍳ (index-of), without ~ (index-of returns nil for not-found); 94/94 tests
- 2026-05-06: Phase 3 step 6 — enclose ⊂ / disclose ⊃ (box/unbox, rank-0 detect via type-of); 82/82 tests
- 2026-05-06: Phase 3 step 5 — grade-up ⍋ / grade-down ⍒ (stable insertion sort); 74/74 tests